What is the most likely cause of worsening symptoms during spring for sensitive patients?

Worsening symptoms in sensitive patients during spring are most commonly attributed to tree pollen. This is because various types of trees release their pollen in the spring as part of their reproductive cycle, leading to increased exposure for individuals with sensitivities or allergies. Symptoms like sneezing, nasal congestion, and asthma exacerbation can occur when tree pollen is abundant in the air.

While grass pollen and ragweed are significant allergens, grass pollen primarily becomes a concern later in the spring and into the summer, and ragweed pollen is more prevalent in the late summer and fall. Dust mites, on the other hand, are typically a problem year-round rather than specifically linked to seasonal changes.